-
Notifications
You must be signed in to change notification settings - Fork 39
/
permission.go
129 lines (116 loc) · 3.84 KB
/
permission.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
package bsdb
import (
"errors"
"time"
"github.com/forbole/juno/v4/common"
"gorm.io/gorm"
permtypes "github.com/bnb-chain/greenfield/x/permission/types"
)
// GetPermissionByResourceAndPrincipal get permission by resource type & ID, principal type & value
func (b *BsDBImpl) GetPermissionByResourceAndPrincipal(resourceType, principalType, principalValue string, resourceID common.Hash) (*Permission, error) {
var (
permission *Permission
err error
)
startTime := time.Now()
methodName := currentFunction()
defer func() {
if err != nil {
MetadataDatabaseFailureMetrics(err, startTime, methodName)
} else {
MetadataDatabaseSuccessMetrics(startTime, methodName)
}
}()
err = b.db.Table((&Permission{}).TableName()).
Select("*").
Where("resource_type = ? and resource_id = ? and principal_type = ? and principal_value = ? and removed = false", resourceType, resourceID, permtypes.PrincipalType_value[principalType], principalValue).
Take(&permission).Error
if errors.Is(err, gorm.ErrRecordNotFound) {
return nil, nil
}
return permission, err
}
// GetStatementsByPolicyID get statements info by a policy id
func (b *BsDBImpl) GetStatementsByPolicyID(policyIDList []common.Hash, includeRemoved bool) ([]*Statement, error) {
var (
statements []*Statement
err error
)
startTime := time.Now()
methodName := currentFunction()
defer func() {
if err != nil {
MetadataDatabaseFailureMetrics(err, startTime, methodName)
} else {
MetadataDatabaseSuccessMetrics(startTime, methodName)
}
}()
if includeRemoved {
err = b.db.Table((&Statement{}).TableName()).
Select("*").
Where("policy_id in ?", policyIDList).
Find(&statements).Error
} else {
err = b.db.Table((&Statement{}).TableName()).
Select("*").
Where("policy_id in ? and removed = false", policyIDList).
Find(&statements).Error
}
return statements, err
}
// GetPermissionsByResourceAndPrincipleType get permission by resource type & ID, principal type
func (b *BsDBImpl) GetPermissionsByResourceAndPrincipleType(resourceType, principalType string, resourceID common.Hash, includeRemoved bool) ([]*Permission, error) {
var (
permissions []*Permission
err error
)
startTime := time.Now()
methodName := currentFunction()
defer func() {
if err != nil {
MetadataDatabaseFailureMetrics(err, startTime, methodName)
} else {
MetadataDatabaseSuccessMetrics(startTime, methodName)
}
}()
if includeRemoved {
err = b.db.Table((&Permission{}).TableName()).
Select("*").
Where("resource_type = ? and resource_id = ? and principal_type = ?", resourceType, resourceID, permtypes.PrincipalType_value[principalType]).
Find(&permissions).Error
} else {
err = b.db.Table((&Permission{}).TableName()).
Select("*").
Where("resource_type = ? and resource_id = ? and principal_type = ? and removed = false", resourceType, resourceID, permtypes.PrincipalType_value[principalType]).
Find(&permissions).Error
}
return permissions, err
}
// Eval is used to evaluate the execution results of permission policies.
func (p Permission) Eval(action permtypes.ActionType, blockTime time.Time, opts *permtypes.VerifyOptions, statements []*Statement) permtypes.Effect {
var (
allowed bool
e permtypes.Effect
)
// 1. the policy is expired, need delete
if p.ExpirationTime != 0 && time.Unix(p.ExpirationTime, 0).Before(blockTime) {
// Notice: We do not actively delete policies that expire for users.
return permtypes.EFFECT_UNSPECIFIED
}
// 2. check all the statements
for _, s := range statements {
if s.ExpirationTime != 0 && time.Unix(s.ExpirationTime, 0).Before(blockTime) {
continue
}
e = s.Eval(action, opts)
if e == permtypes.EFFECT_DENY {
return permtypes.EFFECT_DENY
} else if e == permtypes.EFFECT_ALLOW {
allowed = true
}
}
if allowed {
return permtypes.EFFECT_ALLOW
}
return permtypes.EFFECT_UNSPECIFIED
}